EP0547954B1 - Appareil de découpage rotatif - Google Patents

Appareil de découpage rotatif Download PDF

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Publication number
EP0547954B1
EP0547954B1 EP92403390A EP92403390A EP0547954B1 EP 0547954 B1 EP0547954 B1 EP 0547954B1 EP 92403390 A EP92403390 A EP 92403390A EP 92403390 A EP92403390 A EP 92403390A EP 0547954 B1 EP0547954 B1 EP 0547954B1
Authority
EP
European Patent Office
Prior art keywords
bearing blocks
vertical
cutting
cutting cylinder
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92403390A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0547954A1 (fr
Inventor
Nicolas Kakko-Chiloff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Usinage Montage et Assistance Technique UMAT
Original Assignee
Usinage Montage et Assistance Technique UMAT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Usinage Montage et Assistance Technique UMAT filed Critical Usinage Montage et Assistance Technique UMAT
Publication of EP0547954A1 publication Critical patent/EP0547954A1/fr
Application granted granted Critical
Publication of EP0547954B1 publication Critical patent/EP0547954B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4833—Cooperating tool axes adjustable relative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4838—With anvil backup
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9309—Anvil
    • Y10T83/9312—Rotatable type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type

Definitions

  • the present invention relates to a rotary cutting apparatus which can be used more particularly in printing and shaping lines for folding cardboard boxes and self-adhesive labels.
  • These devices are generally based on the principle of rolling, one on top of the other, of two superimposed cylinders, of parallel axes, one of which, namely the cutting cylinder itself, is engraved in relief while the The other cylinder or “anvil” cylinder is smooth.
  • the two cylinders may have complementary engravings.
  • the drive in rotation of the two cylinders, at the same peripheral speed but in opposite directions to each other, is ensured by connecting gears of the same pitch diameter chosen so that it remains, between the two cutting cylinders, a small constant distance necessary to ensure a good cut of the sheet of cardboard or paper passing between them, without there being any contact between the metal parts ensuring the cut.
  • the interval which separates the two cutting cylinders from parallel axes is provided by rollers or raceways which are fixed to the ends of the two cylinders while being perfectly concentric with them.
  • the diameter of each of these rollers is equal to the pitch diameter of the connecting gear. The cutting pressure can then be applied without reserve to the two cylinders.
  • the diameter of the cutting rolls which depends on the cut format, must also be determined, depending on the width, so that the flexions used during cutting, added to the execution tolerances, are not greater than the theoretical distance between the cutting parts.
  • Bending which occurs during the cutting operation, has two origins, namely the actual bending of the cylinders under the effect of a point or uniformly distributed load, due to the cutting force, and the bending caused by the bending moments due to the force exerted on the rockets of the cylinders.
  • the present invention relates to improvements made to a rotary cutting apparatus of the aforementioned type making it possible to very significantly reduce the bending or deflection suffered by the cutting cylinder during a cutting operation.
  • this rotary cutting apparatus comprising a frame supporting, between two parallel vertical uprights, two superimposed cutting cylinders, with parallel axes, namely an upper cutting cylinder and a lower cutting cylinder respectively secured to rolling raceways one on the other, the two opposite coaxial spindles of the upper cutting cylinder being mounted respectively in rotation in two opposite upper bearing blocks which can slide vertically on the two respective uprights, while that the two opposite coaxial spindles of the lower cutting cylinder are mounted respectively in rotation in two opposite lower bearing blocks, which can slide vertically on the two respective uprights, located respectively below the upper bearing blocks, each of the upper bearing blocks being extended, its upper part, towards the interior of the apparatus, by a cantilevered part subjected to the action, downwards, of a vertical pressurizing cylinder mounted on the upper part of the apparatus , while each of the lower bearing blocks is extended, at its lower part, towards the interior of the apparatus, by a cantilever part extending above a stop carried by the corresponding upright and with which it is in contact, is
  • the rotary cutting device shown in Figures 1 and 2 comprises a frame consisting of two parallel vertical uprights 1,2 connected together by horizontal crosspieces not shown. Each of the uprights 1,2 is notched, in its upper part, with an opening 3 extending vertically, of rectangular shape and opening into the upper horizontal face of the upright. In the two opposite openings 3 is engaged an interchangeable cutting device consisting essentially of two upper 4 and lower 5 cutting cylinders, with parallel horizontal axes, between which a sheet of paper or cardboard to be cut must pass.
  • the upper cutting cylinder 4 is extended, at its two ends, by two coaxial spindles 4a, 4b and it is integral with two raceways 6 located at a distance from the two end faces of the cutting cylinder 4 and between which is the part engraved with the cylinder 4.
  • the lower cutting cylinder 5 which can be smooth ("anvil” cylinder) or engraved, is extended at its two ends by two coaxial rockets 5a, 5b.
  • the upper raceways 6 run on the periphery of the smooth lower cylinder 5 which then constitutes, in the case of this "anvil” cylinder, two lower raceways in the two zones of contact with the upper raceways and they have a same diameter which is slightly greater than that of the upper cutting cylinder 4, so as to maintain between the two cylinders 4 and 5 a small gap necessary to ensure a good cut of the sheet of cardboard or paper passing between them, without however, there is contact between the metal parts ensuring the cut.
  • the diameter of the upper raceways 6 is equal to that of the cylinder lower anvil 5 and with the pitch diameter of connecting gears 7,8, respectively secured to the left rockets 4a, 5a (in FIG. 1) of the cutting cylinders 4,5, outside the left upright 1.
  • These gears of 7,8 link are engaged with each other and are rotated from the general control of the device.
  • the rockets 4a, 4b and 5a, 5b of the cutting cylinders 4,5 are respectively mounted for rotation in superimposed blocks forming bearings, namely upper and lower bearing blocks 9, engaged closely in the openings 3 and able to slide vertically in these.
  • Each upper bearing block 9 is extended, at its upper part, towards the interior of the apparatus, by a cantilever part 9a extending above the end part of the upper cutting cylinder 4.
  • each lower bearing block 10 is extended, at its lower part, towards the interior of the apparatus, by a cantilever part 10a which extends below the end part of the lower cutting cylinder 5 and above a fixed added stop 11.
  • This stop 11 is fixed, by means of screws, to the internal face of the corresponding upright 1.2 so that its upper horizontal face is situated at a level slightly higher than that where the lower edge of the opening is located 3.
  • the internal cantilever part 10a of each lower bearing block 10 is normally supported on the upper face of the insert 11 and the lower face of this lower bearing block 10 is slightly apart ed from the bottom edge of the opening 3.
  • the upper 9 and lower 10 bearing blocks of each pair of blocks are also connected to each other, as described in patent FR-A-2,645,790, by an elastic coupling device tending to lift each upper bearing block 9 relative to the lower bearing block 10 and allowing a limited vertical stroke of the upper bearing block 9 relative to the lower bearing block 10, this coupling device not being shown in the drawing for the purpose of simplifying it.
  • the rotary cutting device comprises, at its upper part, a pressurizing frame 12 which comprises a central cross member 13 carrying, at its ends, two vertical pressurizing jacks 14.
  • the rods of these jacks extend downward, and their lower ends are located just above the cantilever parts 9a of the upper bearing blocks 9 and in contact with them.
  • the pressurizing frame 12 is preferably articulated as a whole, on one side, around a transverse axis and it can be stationary in a horizontal position, on the frame of the device, by any suitable means.
  • the vertical pressurizing jacks 14 are mounted on the cross member 13 of the pressurizing frame 12, so that the vertical axis of each of these jacks 14 is contained in a vertical and transverse plane P situated between the plane vertical and transverse median P1 of the neighboring upper raceway 6 and the neighboring upper bearing block 9. Furthermore a shim or spacer 15, of adjustable height, is interposed between each pair of upper 9 and lower bearing blocks 10. This spacer 15 is located substantially in the vertical and transverse median plane P2 common to the two upper 9 and lower 10 bearing blocks of the same pair of blocks.
  • Means are provided for adjusting, as desired, the height of the adjustable spacer 15.
  • These means may include, for example, two vertical rods 16, passing from top to bottom each upper bearing block 9, on either side of the spindle 4a, 4b of the upper cutting cylinder 4, and at least the lower end parts 16a of which are threaded and screwed into corresponding tapped holes provided in the lower part of the block 9.
  • the two end parts 16a of the rods 16 constitute the spacer 15 by bearing on the upper face of the lower bearing block 10.
  • the two rods 16 are integral with respective pinions 17 engaged with a common central pinion 18 integral with a vernier 19. It is thus possible, by rotating this vernier 19, to adjust the height of which the lower parts 16a of the rods 16 protrude below the bearing block 9 and consequently the spacing between the two blocks 9 and 10.
  • the pressurizing frame 12 When the rotary cutting device according to the invention is set in pressure, the pressurizing frame 12 extends horizontally and, when the two jacks 14 are put under pressure, their rods are pushed down, against the two upper bearing blocks 9.
  • the force F produced by each of the jacks 14 is exerted downwards in the vertical and longitudinal plane P passing through the axis of the corresponding jack 14, it applies at a point A (FIG. 3) in the horizontal plane of support on the lower cutting cylinder 5 and it is supported by the fixed stop 11.
  • the point A of application of the force F is located between, on the one hand, the median contact point B between the raceway 6 and the lower cylinder 5 and, on the other hand, the contact point C between the two blocks 9,10, by means of the spacer 15.
  • each rocket 4a of the cylinder 4 is found to be embedded, together with the extreme part of the cylinder 4 to the path of r only 6, that is to say over the length of the segment CB. Due to this embedding, the bending that the upper cutting cylinder 4 undergoes, during a cutting operation, is much weaker than when there is no embedding due to the absence of the spacers 15. This is highlighted by the curves I and II of Figure 3 which respectively represent the arrows f and f1 that takes the cutting cylinder 4 during a cutting operation.
  • Curve I gives the arrow f of the cutting cylinder 4 in the absence of embedding, that is to say when the spacers 15 are not provided, while curve II gives the arrow f1 obtained with an embedding the along the BC segments. It is clearly seen from these curves that the arrow f1 obtained, during a cutting operation, by means of the apparatus according to the invention is significantly lower, of the order of 5 times, than the arrow f that cylinder 4 takes when there is no embedding.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Road Repair (AREA)
  • Milling Processes (AREA)
  • Details Of Cutting Devices (AREA)
EP92403390A 1991-12-16 1992-12-14 Appareil de découpage rotatif Expired - Lifetime EP0547954B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115587A FR2684913B1 (fr) 1991-12-16 1991-12-16 Appareil de decoupage rotatif.
FR9115587 1991-12-16

Publications (2)

Publication Number Publication Date
EP0547954A1 EP0547954A1 (fr) 1993-06-23
EP0547954B1 true EP0547954B1 (fr) 1995-10-18

Family

ID=9420085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403390A Expired - Lifetime EP0547954B1 (fr) 1991-12-16 1992-12-14 Appareil de découpage rotatif

Country Status (7)

Country Link
US (1) US5301583A (zh)
EP (1) EP0547954B1 (zh)
JP (1) JPH05318392A (zh)
CN (1) CN1031330C (zh)
DE (1) DE69205554T2 (zh)
ES (1) ES2078005T3 (zh)
FR (1) FR2684913B1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4454841A1 (en) * 2023-04-24 2024-10-30 Nippon Tungsten Co., Ltd. Rotary cutter unit

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209433B1 (en) * 1998-02-10 2001-04-03 Delta Industrial Services, Inc. Single revolution die cutter
IT1302771B1 (it) * 1998-09-29 2000-09-29 Danieli & C Ohg Sp Cesoia a rotazione continua
DE10044705C1 (de) * 2000-09-09 2002-02-21 Aichele Werkzeuge Gmbh Rotationsschneidvorrichtung
NL1024915C2 (nl) * 2003-12-01 2005-06-06 Jean Henry Robert Madern Inrichting voor het aanbrengen van een snede, ril en dergelijke, omvattende een plaatvormig stelsel.
SE527556C2 (sv) * 2004-07-02 2006-04-11 Sandvik Intellectual Property En stödvals för en rotationsknivenhet och en rotationsknivenhet med en dylik stödvals
SE527838C2 (sv) * 2004-07-02 2006-06-20 Sandvik Intellectual Property En rotationskniv och en rotationsknivanordning försedd med en dylik rotationskniv
US8015904B2 (en) * 2004-10-08 2011-09-13 Western Printing Machinery Company Die holder assembly for rotary cutting system
EP1952956A1 (de) * 2007-02-02 2008-08-06 Müller Martini Holding AG Vorrichtung zum Schneiden eines aus Druckprodukten gebildeten Schuppenstroms
WO2011012925A1 (en) * 2009-07-29 2011-02-03 Sidel S.P.A. Cutting unit for labelling machines with a multiple-blade rotary drum
CN101712163B (zh) * 2009-11-18 2012-07-18 佛山市南海富利包装机械有限公司 一种螺旋横切机刀轴结构
CN106514767A (zh) * 2015-09-09 2017-03-22 上海景奕电子科技有限公司 一种适用于圆刀机负轴贴合滚轮
GB201703644D0 (en) 2017-03-07 2017-04-19 Elopak As Improvements in or relating to toller mounting arrangements
PL443325A1 (pl) * 2022-12-27 2024-07-01 Aza-Tech Spółka Z Ograniczoną Odpowiedzialnością Sposób cięcia wzdłużnego szyn

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
GB398169A (en) * 1932-03-01 1933-09-01 Arthur Bingham Improvements in mountings for roller spindles
US3348477A (en) * 1961-01-12 1967-10-24 Hudson Pulp & Paper Corp Paper converting, and particularly producing improved paper towels
DE1243000B (de) * 1963-09-26 1967-06-22 Smithe Machine Co Inc F L Verfahren und Vorrichtung zum Aufrechterhalten eines gewuenschten Abstandes zwischen der Schneidkante eines an einer Walze gehalterten Werkzeugs und einer Gegenwalze
DE2912458A1 (de) * 1979-03-29 1980-10-09 Winkler Duennebier Kg Masch Rotationsstanze mit gegen die messerwalze abgestuetzter gegenwalze
US4455903A (en) * 1982-11-15 1984-06-26 Preston Engravers, Inc. Adjustable anvil roll
US4507996A (en) * 1982-11-15 1985-04-02 Preston Engravers, Inc. Device for transferring and monitoring load to die roll
US4608895A (en) * 1984-03-14 1986-09-02 Bernal Rotary Systems, Inc. Rotary die cutting
FR2578193B1 (fr) * 1985-01-07 1989-06-23 Lacan Jacques Machine de plastification a froid
FR2595610A1 (fr) * 1986-03-13 1987-09-18 Gautier Jean Dispositif de decoupe rotative ou de refoulage pour produits plats
US4732082A (en) * 1986-06-25 1988-03-22 Carl Ireton Apparatus and method for mounting embossing rollers in a press line
FR2645790A1 (fr) * 1989-03-30 1990-10-19 Umat Appareil de decoupage rotatif

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4454841A1 (en) * 2023-04-24 2024-10-30 Nippon Tungsten Co., Ltd. Rotary cutter unit

Also Published As

Publication number Publication date
US5301583A (en) 1994-04-12
FR2684913B1 (fr) 1996-02-02
EP0547954A1 (fr) 1993-06-23
JPH05318392A (ja) 1993-12-03
CN1031330C (zh) 1996-03-20
DE69205554T2 (de) 1996-04-11
ES2078005T3 (es) 1995-12-01
CN1073392A (zh) 1993-06-23
DE69205554D1 (de) 1995-11-23
FR2684913A1 (fr) 1993-06-18

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